Construction method of self-priming pump to lower local groundwater level
A construction method and self-priming pump technology, applied in infrastructure engineering, construction, etc., can solve problems such as prone to failure, poor drainage effect, and hidden safety hazards, and achieve the effects of ensuring construction quality, improving construction efficiency, and reducing labor intensity
Active Publication Date: 2019-03-19
CHINA 22MCC GROUP CORP
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The existing method of temporarily lowering the local groundwater level seals the sewage pump in the sump, causing huge waste. At the same time, it needs to provide power to the sewage pump, which has certain safety hazards, is prone to failure, and has poor drainage effect
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] The present invention is described in detail below with reference to accompanying drawing and embodiment:
[0024] attached Figure 1-2 It can be seen that a self-priming pump reduces the local groundwater level construction method, comprising the following steps:
[0025] 1) Set up a temporary sump 2 near the side wall of the sump 1 at the bottom of the sump 1;
[0026] 2) Use large-sized crushed stones 3 to fill the temporary water pit 2, and embed PVC pipes 4 during the crushed stones filling process;
[0027] 3) After the filling of the temporary sump 2 is completed, use cement mortar to compact and level it; during the construction of the waterproof layer 5 of the sump 1, close the edge at the reserved PVC pipe 4;
[0028] 4) A self-priming pump 6 is installed on the top of the sump 1, and the end of the self-priming pump drain pipe 7 is wrapped with a fine-mesh filter, and inserted into the pre-buried PVC pipe 4; the water level in the PVC pipe 4 is pumped by th...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a construction method for reducing a local underground water level by a self-priming pump. The construction method comprises the following steps: a temporary plash is formed in the bottom of a sump near the side wall of the sump; the temporary plash is filled by gravels 3 with a large particle size, a PVC pipe is embedded in the gravel filling process; the self-priming pump is arranged at the top of the sump, and a drain pipe end of the self-priming pump is wrapped with a fine-mesh filter screen to extend in the embedded PVC pipe; water in the PVC pipe is pumped by the self-priming pump at any time to drain into a drainage ditch; before baseplate concrete is cast, the water level is lowered by the self-priming pump; before the water level is recovered, the melting of the PVC pipe is finished; a waterproof coil closed construction is used; the concrete is cast quickly in a concentrated manner; and the tightness of a seal is guaranteed through self weight of the concrete. The construction method for reducing the local underground water level by the self-priming pump is safe and reliable, improves the construction efficiency, reduces the labor intensity of workers, reduces the construction cost, and guarantees the construction quality.
Description
technical field [0001] The invention relates to a building construction method, in particular to a construction method for lowering local groundwater levels by a self-priming pump. Background technique [0002] Due to the fact that the groundwater level cannot be completely controlled through the dewatering well in some parts of foundation pit excavation (such as sump pits, etc.), there are local groundwater levels that need to be temporarily lowered. [0003] The existing method for temporarily lowering the local groundwater level uses a sewage pump to lower the water level, and seals the sewage pump below the sump during the waterproof construction process to ensure precipitation at any time. The existing method of temporarily lowering the local groundwater level seals the sewage pump in the sump, causing huge waste. At the same time, it needs to provide power to the sewage pump, which has certain safety hazards, is prone to failure, and has poor drainage effect. Content...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E02D19/10E02D19/20E02D19/22
CPCE02D19/10E02D19/20E02D19/22
Inventor 陈彦路杨金龙朱永帅
Owner CHINA 22MCC GROUP CORP